/Engine/Plugins/Experimental/PCG/Source/PCG/Public/Helpers/PCGBlueprintHelpers.h
Creates a random stream from a point's seed and settings/component's seed (optional)
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintCallable, Category="PCG|Helpers", Meta=(ScriptMethod)) static [FRandomStream](API\Runtime\Core\Math\FRandomStream) GetRandomStream ( const [FPCGPoint](API\Plugins\PCG\FPCGPoint) & InPoint, const [UPCGSettings](API\Plugins\PCG\UPCGSettings) * OptionalSettings, const [UPCGComponent](API\Plugins\PCG\UPCGComponent) * OptionalComponent )